or Connect
AVS › AVS Forum › Audio › Receivers, Amps, and Processors › Marantz AV8801 Preamp/Processor Official Owner's thread
New Posts  All Forums:Forum Nav:

Marantz AV8801 Preamp/Processor Official Owner's thread - Page 314

post #9391 of 11320
Quote:
Originally Posted by comfynumb View Post

If anyone is looking for a good low speed fan for a reasonable price this is it, and the AC cord has an on and off switch. I put 4 self stick rubber pads on the bottom and it's drawing air up out of the 8801. I also Velcro'd one to the side of my Sunfire amp biggrin.gif
Looks like I bought the last 3 of them but I'm sure they'll restock them.

http://www.amazon.com/gp/aw/d/B009OWVUJ0/ref=redir_mdp_mobile?ref_=cm_sw_su_dp
comfy, if your '8801 is much like mine (rolleyes.gif) you'll have noticed that the part of the AV8801 that gets the hottest is at the rear/left (when viewed from the front).
So if you're only using one top mounted fan - that's the place to put it.
I bought two CoolerGuys fans that sit atop the AV8801 and are triggered by a thermostat that I have set to turn them on at 85 degrees. Works pretty well.
post #9392 of 11320
Quote:
Originally Posted by Mad Norseman View Post

comfy, if your '8801 is much like mine (rolleyes.gif) you'll have noticed that the part of the AV8801 that gets the hottest is at the rear/left (when viewed from the front).
So if you're only using one top mounted fan - that's the place to put it.
I bought two CoolerGuys fans that sit atop the AV8801 and are triggered by a thermostat that I have set to turn them on at 85 degrees. Works pretty well.



Hey MN. I'm going to pay more attention to where it is the warmest, I just switched everything around. But I figure I'll put the second one on there and run the both of them when it's movie time or I'm cranking up the tunes. Right now the one is keeping it really cool smile.gif
post #9393 of 11320
Quote:
Originally Posted by Dave Vaughn View Post

I use a Coolerguys fan and blow air out of my built-in unit. I also installed two above my amp. Just moving the air a few inches above the units makes a HUGE difference (over 20 degrees lower).




Looks good Dave, nice cooling system smile.gif
post #9394 of 11320
I used a this fan that runs at 5 volts connected to the rear USB port"

http://www.newegg.com/Product/Product.aspx?Item=N82E16835705067


The network hub has to be set to turn off and the rear usb port selected.
Once you do this, the fan is powered on automatically by the AV8801.



- Rich
post #9395 of 11320
Quote:
Originally Posted by Dave Vaughn View Post

I use a Coolerguys fan and blow air out of my built-in unit. I also installed two above my amp. Just moving the air a few inches above the units makes a HUGE difference (over 20 degrees lower).


Quote:
Originally Posted by Mad Norseman View Post

Quote:
Originally Posted by comfynumb View Post

If anyone is looking for a good low speed fan for a reasonable price this is it, and the AC cord has an on and off switch. I put 4 self stick rubber pads on the bottom and it's drawing air up out of the 8801. I also Velcro'd one to the side of my Sunfire amp biggrin.gif
Looks like I bought the last 3 of them but I'm sure they'll restock them.

http://www.amazon.com/gp/aw/d/B009OWVUJ0/ref=redir_mdp_mobile?ref_=cm_sw_su_dp
comfy, if your '8801 is much like mine (rolleyes.gif) you'll have noticed that the part of the AV8801 that gets the hottest is at the rear/left (when viewed from the front).
So if you're only using one top mounted fan - that's the place to put it.
I bought two CoolerGuys fans that sit atop the AV8801 and are triggered by a thermostat that I have set to turn them on at 85 degrees. Works pretty well.

Quote:
Originally Posted by comfynumb View Post

Quote:
Originally Posted by Mad Norseman View Post

comfy, if your '8801 is much like mine (rolleyes.gif) you'll have noticed that the part of the AV8801 that gets the hottest is at the rear/left (when viewed from the front).
So if you're only using one top mounted fan - that's the place to put it.
I bought two CoolerGuys fans that sit atop the AV8801 and are triggered by a thermostat that I have set to turn them on at 85 degrees. Works pretty well.



Hey MN. I'm going to pay more attention to where it is the warmest, I just switched everything around. But I figure I'll put the second one on there and run the both of them when it's movie time or I'm cranking up the tunes. Right now the one is keeping it really cool smile.gif

Quote:
Originally Posted by RichB View Post

I used a this fan that runs at 5 volts connected to the rear USB port"

http://www.newegg.com/Product/Product.aspx?Item=N82E16835705067


The network hub has to be set to turn off and the rear usb port selected.
Once you do this, the fan is powered on automatically by the AV8801.



- Rich

If I'm getting all of this correctly: the AV8801 is running warmer/hotter than the amplifiers which are serving them?
post #9396 of 11320
Quote:
Originally Posted by erhurd View Post




If I'm getting all of this correctly: the AV8801 is running warmer/hotter than the amplifiers which are serving them?

My amplifier can get quite hot. The ambient temperature can gets to 95 F with the amp below on an open shelf.
The center back of the AV8801 in my system can reach 129 F. The fan gently blowing across the top drops it about 20 F.

- Rich
post #9397 of 11320
Rich,

You many want to add more cooling. I prefer to keep everything below 100 degress, if possible.
post #9398 of 11320
I clock in at 94 degrees ,top shelf open rack ,no fan biggrin.gif
post #9399 of 11320
Quote:
Originally Posted by RichB View Post

I used a this fan that runs at 5 volts connected to the rear USB port"

http://www.newegg.com/Product/Product.aspx?Item=N82E16835705067


The network hub has to be set to turn off and the rear usb port selected.
Once you do this, the fan is powered on automatically by the AV8801.



- Rich



Oh the 8801 and the Halo look pretty awesome together Rich wink.gif
post #9400 of 11320
Quote:
Originally Posted by erhurd View Post




If I'm getting all of this correctly: the AV8801 is running warmer/hotter than the amplifiers which are serving them?



The 8801 definitely runs hotter than my Sunfire amp, but so does most gear. But yes the 8801 runs a bit warm, and I think it warrants that we keep an eye on the temperature. IMO cooler gear runs more efficient and doesn't degrade the SQ, I learned this years ago when my Denon AVR started sounding funky after a couple of hours driving some fairly demanding speakers.
post #9401 of 11320
Quote:
Originally Posted by Dave Vaughn View Post

Rich,

You many want to add more cooling. I prefer to keep everything below 100 degress, if possible.

I am measuring using an infrared thermometer when measures inside the AV8801.
The center back of the aV8801 is measures 104 F which is only 9 degrees above ambient when the A51 has been on a while.

I think it is OK.

- Rich
Edited by RichB - 12/5/13 at 6:55am
post #9402 of 11320
Quote:
Originally Posted by audiofan1 View Post

I clock in at 94 degrees ,top shelf open rack ,no fan biggrin.gif



You'd be interested in my theory that cooler gear sounds better. I know I know this from a guy that believes high end cables are... biggrin.gif I'm not saying it's true in processing but I've found it to be true in amplification. That said 94 degrees is not hot at all.
post #9403 of 11320
Quote:
Originally Posted by erhurd View Post


If I'm getting all of this correctly: the AV8801 is running warmer/hotter than the amplifiers which are serving them?
Yes, my AV8801 runs much warmer than my Emotiva XPR-5 amplifier (400w x 5), and needs the fans...a large 140mm CoolerGuys fan in the amp cabinet, and two 120mm fans atop the AV8801 do the trick nicely to always keep everything below 85 degrees F.
post #9404 of 11320
Quote:
Originally Posted by Mad Norseman View Post

Yes, my AV8801 runs much warmer than my Emotiva XPR-5 amplifier (400w x 5), and needs the fans...a large 140mm CoolerGuys fan in the amp cabinet, and two 120mm fans atop the AV8801 do the trick nicely to always keep everything below 85 degrees F.



Hey MN, to update my earlier post, my 8801's "warm spot" is smack in the middle of the rear vent. I'm thinking it depends on how many HDMI's your using and I only have one in and one out.
post #9405 of 11320
Quote:
Originally Posted by comfynumb View Post

Hey MN, to update my earlier post, my 8801's "warm spot" is smack in the middle of the rear vent. I'm thinking it depends on how many HDMI's your using and I only have one in and one out.

My money is on the video chip.
It is reported that the Yamaha CX-A5000 runs much cooler.

- Rich
post #9406 of 11320
Quote:
Originally Posted by RichB View Post

My money is on the video chip.
It is reported that the Yamaha CX-A5000 runs much cooler.

- Rich

The Yamaha does run much cooler.
post #9407 of 11320
Quote:
Originally Posted by Dave Vaughn View Post

I use a Coolerguys fan and blow air out of my built-in unit. I also installed two above my amp. Just moving the air a few inches above the units makes a HUGE difference (over 20 degrees lower)
this is good to know, thanks for sharing that. What model No. are you using? Also how are you powering fans?

I'm in-process setting-up a projector. The mounting location (on wall, just below ceiling) is fixed, and just happens to be directly under an air-conditioning/heater vent. I'm trying to locate a deflector product to divert air away from the projector. The vent is approx 09.00in X 09.00in square.
Quote:
Originally Posted by comfynumb View Post

Oh the 8801 and the Halo look pretty awesome together Rich wink.gif
glad to see many AV8801/Parsound Halo combinations out there
Edited by WestCoastD - 12/5/13 at 8:55pm
post #9408 of 11320
Quote:
What model No. are you using? Also how are you powering fans?

They sell a power supply that's temperature controlled: http://www.coolerguys.com/840556093695.html

Here are the fans I bought: http://www.coolerguys.com/840556100898.html

I also had to buy some extension cords that they sell to reach the power supply. Overall it cost me a little over $100 for the power supply, three fans, and the extension cords. I also had to spend a coupe of bucks at Lowes for the L-brackets with nuts and bolts to secure them to the bottom of the shelves. I figured it was a small price to pay to keep the much more expensive equipment cool!

As for your projector question, something like this should work: http://www.lowes.com/pd_36708-34146-APSWDF_4294644667__?productId=3260399&Ntt=vent+covers&pl=1&currentURL=%3FNtt%3Dvent%2Bcovers&facetInfo=

I use one in the winter so heat isn't blowing directly on my projector.
post #9409 of 11320
Quote:
Originally Posted by comfynumb View Post

Looks good Dave, nice cooling system smile.gif

Thanks smile.gif
post #9410 of 11320
Quote:
Originally Posted by Dave Vaughn View Post

As for your projector question, something like this should work: http://www.lowes.com/pd_36708-34146-APSWDF_4294644667__?productId=3260399&Ntt=vent+covers&pl=1&currentURL=%3FNtt%3Dvent%2Bcovers&facetInfo=

I use one in the winter so heat isn't blowing directly on my projector.
thanks for the info. The link to the air conditioner vent deflector is failing (probably incomplete)
post #9411 of 11320
Quote:
Originally Posted by beastaudio View Post

Have you done any type of cable management to separate the power cables from the signal cables?

Quote:
Originally Posted by Hifi4Hobby View Post

I suspect it could be your amps. Some amps seem to have the higher noise floor and some perhaps due to its design will have such "non-intrusive" hissing sound. My 8801 paired to the Parasounds seem to generate a very faint hiss if you stick your ears to the speaker grille and know what you're looking for, it's almost in line with the ambient noise so not really a concern to me.

Try this :

1. Check and see if the hissing sound is there with your system cold booting for the day, ie. left switch off for more than 8 hours and then power it back on;
2. With the system power up, turn the 8801 volume all the way down and listen for the hissing sound;
3. With the power off, unplug the 8801 connection to your power amps and then power up the power amps and listen for the hiss;
3. Is your 8801 and amps all on the same power line? Are they going through a different power conditioners?

See any of these applies to you..

1. Hiss was still present when cold booted.
2. hissing begins one click after volume is increased from off.
3. No hiss until AV8801 is plugged into amps.
4. All are on the same line. They all go through the same power conditioner.

Your last point Got me thinking, so I did a few things. I took my Conditioner off of the dedicated power line, and placed it on another of a different phase. That cut the hiss in half. Perhaps I have more utilities and appliances on the first phase?

Quote:
Originally Posted by RichB View Post

I had excessive hiss from my speakers and discovered the AV8801 power cord was not making a good connection.
I could get it to go away by wiggling the plug.

It's worth a try.

- Rich

This was an issue. For sure. I could cause a direct effect on the hiss by playing with the power cord. It was not a tight fit.

I bought a new Power Cord.

Quote:
Originally Posted by Dave Vaughn View Post

I haven't had this problem with my setup. I'm not using the stock cord though, a colleague sent me some uber-expensive Audioquest power cords to try out and I've been using them for a while. I need to switch back to stock and see if I can tell a difference or not.

Thanks everyone for helping. In the end I did some work to manage the power line, made a cable adjustment, and in the end reduced the hiss by half for free with just some good old hard work troubleshooting. The remaining hiss was eliminated by using a cord made by Shunyata Research. I bought a Digital Alpha Power cord.



http://www.shunyata.com/Content/products-SignalDigAlpha.html

Here is an example of the cable in action, pics are from the website.

AlphaDigital02.png 37k .png file
post #9412 of 11320
ATyUg1

I managed to sneak some time in listening to my Sonos source. I heard a difference right away on Sonos, the soundstage of the 8801 was much bigger than that of the 80.3, it wasn't even close (I listen to the same songs all the time, so I know what they have sounded like over the past few months). My gripe with my in-walls is that my soundstage is limited to where the speakers are, but that isn't the case with the 8801, I heard much more off axis vs. the 80.3. So far, larger soundstage, better defined. I am running XT32 tomorrow morning and I will post up after that.

post #9413 of 11320
Quote:
Originally Posted by zuluwalker View Post


1. Hiss was still present when cold booted.
2. hissing begins one click after volume is increased from off.
3. No hiss until AV8801 is plugged into amps.
4. All are on the same line. They all go through the same power conditioner.

Your last point Got me thinking, so I did a few things. I took my Conditioner off of the dedicated power line, and placed it on another of a different phase. That cut the hiss in half. Perhaps I have more utilities and appliances on the first phase?
This was an issue. For sure. I could cause a direct effect on the hiss by playing with the power cord. It was not a tight fit.

I bought a new Power Cord.
Thanks everyone for helping. In the end I did some work to manage the power line, made a cable adjustment, and in the end reduced the hiss by half for free with just some good old hard work troubleshooting. The remaining hiss was eliminated by using a cord made by Shunyata Research. I bought a Digital Alpha Power cord.



http://www.shunyata.com/Content/products-SignalDigAlpha.html

Here is an example of the cable in action, pics are from the website.

AlphaDigital02.png 37k .png file

Good clean unrestricted power is a system building fundamental that to often gets over looked but can be a Paradigm shift when done right (cable choice,conditioning etc..) and take a piece like the 8801 and kick it up several notches by revealing potential one may not know it has.

Well done Sir wink.gif
post #9414 of 11320
Is there a typo on the website or did you really spend a grand on a power cable?
post #9415 of 11320
My hiss problem went away when Marantz serviced the unit replacing the power receptacle and cord.
Mighty good deal tongue.gif

- Rich
post #9416 of 11320
Ithink the WD player is great also. I have 2 3tb hard drives loaded with movies abd concert's and music. The WD does a great job for the $.
post #9417 of 11320
Quote:
Originally Posted by beastaudio View Post

Is there a typo on the website or did you really spend a grand on a power cable?

Shhhhhhhh!

My wife might be listening...
post #9418 of 11320
Quote:
Originally Posted by RichB View Post

My hiss problem went away when Marantz serviced the unit replacing the power receptacle and cord.
Mighty good deal tongue.gif

- Rich

Great play Rich, that is a good deal. I am glad your issues with hiss have been resolved too. Power is my new obsession; what else can I do to improve it, and where am I going wrong?
post #9419 of 11320
Quote:
Originally Posted by labman1 View Post

Ithink the WD player is great also. I have 2 3tb hard drives loaded with movies abd concert's and music. The WD does a great job for the $.
yes, I have like 4 WD MyBookLive drives (1TB & 2TB), they work beautiful for streaming media files
post #9420 of 11320
Does the AV8801 have a 12 volts trigger for the power amp, I don't seem to find this information anywhere.
Also if I put the unit in-wall, furnace room and it have lots of breathing space does it realy require a fan?
It would run 2 or 4 hours max since it would be for movie only.
Also if it make a difference or not, the AV8801 will be use for audio only since my Oppo103 has 2 HDMI out, 1 for audio and 1 for the projector and this the way I use it (directly to the projector to by-pass the A/Vcontroller).

Thanks

Ray
Edited by darthray - 12/8/13 at 3:32pm
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Receivers, Amps, and Processors
AVS › AVS Forum › Audio › Receivers, Amps, and Processors › Marantz AV8801 Preamp/Processor Official Owner's thread